Copper(I) Coordination Chemistry of (Pyridylmethyl)amide Ligands
Lei Yang
Robert P. Houser
10.1021/ic0612810.s001
https://acs.figshare.com/articles/dataset/Copper_I_Coordination_Chemistry_of_Pyridylmethyl_amide_Ligands/3048484
Copper(I) chloro complexes were synthesized with a family of ligands, HL<sup>R</sup> [HL<sup>R</sup> = <i>N</i>-(2-pyridylmethyl)acetamide,
R = null; 2-phenyl-<i>N</i>-(2-pyridylmethyl)acetamide, R = Ph; 2,2-dimethyl-<i>N</i>-(2-pyridylmethyl)propionamide, R = Me<sub>3</sub>;
2,2,2-triphenyl-<i>N</i>-(2-pyridylmethyl)acetamide, R = Ph<sub>3</sub>)]. Five complexes were synthesized from the respective
ligand and cuprous chloride:ā [Cu(HL)Cl]<i><sub>n</sub></i> (<b>1</b>), [Cu<sub>2</sub>(HL)<sub>4</sub>Cl<sub>2</sub>] (<b>2</b>), [Cu<sub>2</sub>(HL<sup>Ph</sup>)<sub>2</sub>(CH<sub>3</sub>CN)<sub>2</sub>Cl<sub>2</sub>] (<b>3</b>), [Cu<sub>2</sub>(HL<sup>Ph</sup><sub><sup>3</sup></sub>)<sub>2</sub>Cl<sub>2</sub>] (<b>4</b>),
and [Cu(HL<sup>Me</sup><sub><sup>3</sup></sub>)<sub>2</sub>Cl] (<b>5</b>). X-ray crystal structures reveal that for all complexes the ligands coordinate to the Cu in a
monodentate fashion, and inter- or intramolecular hydrogen-bonding interactions formed between the amide NH
group and either amide Cī»O or chloro groups stabilize these complexes in the solid state and strongly influence
the structures formed. Complexes <b>1</b>ā<b>5</b> display a range of structural motifs, depending on the size of the ligand
substituent groups, hydrogen bonding, and the stoichiometry of the starting materials, including a one-dimensional
coordination polymer chain (<b>1</b>) and binuclear (<b>2</b>ā<b>4</b>) or mononuclear (<b>5</b>) structures.
2006-11-13 00:00:00
ligand substituent groups
amide NH group
chloro groups
monodentate fashion
HLR
Cu
complex